US2642187A - Filter unit construction - Google Patents

Filter unit construction Download PDF

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Publication number
US2642187A
US2642187A US13805050A US2642187A US 2642187 A US2642187 A US 2642187A US 13805050 A US13805050 A US 13805050A US 2642187 A US2642187 A US 2642187A
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Patent type
Prior art keywords
pleats
end
discs
body
resin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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Inventor
Bell Albert Edward
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Purolator Products Inc
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Purolator Products Inc
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D27/00Cartridge filters of the throw-away type
    • B01D27/04Cartridge filters of the throw-away type with cartridges made of a piece of unitary material, e.g. filter paper
    • B01D27/06Cartridge filters of the throw-away type with cartridges made of a piece of unitary material, e.g. filter paper with corrugated, folded or wound material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor
    • B01D29/11Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/111Making filtering elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor
    • B01D29/11Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/13Supported filter elements
    • B01D29/15Supported filter elements arranged for inward flow filtration
    • B01D29/21Supported filter elements arranged for inward flow filtration with corrugated, folded or wound sheets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2201/00Details relating to filtering apparatus
    • B01D2201/04Supports for the filtering elements
    • B01D2201/0461Springs

Description

June 16, 1953 'A..E. BELL FILTER UNIT CONSTRUCTION Filed Jan. 11, 195o INVENTOR. ALBERT E-.BELL

ATTORNEYS Patented June 16, 1953 '""ioN,1rrDi STATES PATENT OFFCE vPurolator Products, Inc., Newark, N. J., a. corporation of Delaware f Application January 11, `1950,.'Seria1No. 138,050

This' invention relates to filters and more particularly to replaceable element typewnlter element renlls.

axis. The pleated tubular body heretofore used,

thereafter has had its ends sealed off with flat end discs that are also resin impregnated, these end discs being-secured to the ends of the pleats j 4'Clams. (Cl. 210-169) by a suitable resin oradhesive bond. VBecause of the thinness vof the end vedges fof theA pleats at their joints with the end discs, difficulty in making an effective bond has frequently been encountered, resulting in lack of necessary rigidity of the unit and also in radial displacement of improperly bonded pleats either duringl shipment or use and consequent leakage.

The invention herein contemplated has among its objects and features, the 'elimination of improper bonds', the provision ofrigid rugged filter unit structuresand' the prevention of radial displacement ofgindividual pleats even if Valoosening of or defective bonding should result from transportation or use, and prevention of leakage.

AWith structure embodying the invention, the end discs are curled over the ends of the pleated lilterbody during bonding, there-by preventing all convolutons or pleats from extending beyond edges of the end discs at any time and thereby preventing leaks at such places. seal can be made between the end discs and the pleats or convolutions because more of the cement is retained during and after bonding. In

' addition, greater strength results because of thek substantial cup `shape' of thefdiscs over the obviously weaker structure when a frameis used.

.Other objects and novel features will become apparent from the following description and accompanying drawings wherein:

Fig. l is a vertical section through a replaceable filler unit embodying the invention;

Fig. 2 is a transverse section taken along the line 2-2 of Fig.'1;

Fig. 3 is a vertical section similar to that of Fig. l of a modied construction; and

Fig. 4 is a vertical section of a third embodiment of the invention.

Referring to the drawing and rst to Fig. 1, I denotes generally a replaceable filter unit embodying the invention. This unit includes a body II of filter paper or the like, preferably impregnated with phenol formaldehyde resin solution as Also aV better is well' known in this art. This" body is pleated to provide pleats I2 las shown in Fig'. 2 Vand the pleated body formed `into a tubular body with the pleats I2 extending substantially lradially as shown in Fig. 2. The internal hole I 3 of the said tubular body contains a lhelical coil I4' whose turns have substantially the internal diameter of said body and Whichact as guides or spacers for the inner longitudinal folds I5 ofthe pleats` I2. An external perforated Wrapping or cover I6 optionally is wrapped around the outer longitudinal folds I'Iof the pleats I2. Y v

End discs I8 and I9, preferably of similar resin impregnated paper, to be mounted at'opposite ends of the pleated elementl are provided. yThese end discs are both initially of larger diameter than the outer'ove'rall diameter ofthe tubular element I i and respectively have center holes' 20, 2| of smaller diameter than the hole I3.` In applying the end discs to the body II, the outer edges of the pleats I 2n are'rst coated with a phenol formaldehyde resin cement and the inner faces of the two'discs aresimilarly coated with a similar cement layer 22, 23. The twol discs arethen applied to the opposite end edges of the pleats I2 withtheir centers concentric with Vthe longitudinal axis' of hole I3. lPressure and heat are then applied to rmlypress the'end discs against the pleat edges and simultaneously `pressure is appliedY to the overlappingportions I9 to turn these edges down-V of thev discs I8 and wardly around the outer and inner folds I'I and because of the cement layers 22, 23 are bonded to the pleats of their respective inner and outer folds. The heat acts to polymerize and set the resin and firmly hold the parts between which the'resin cement lies.

In the completed structure, the annularrims l24, 25, 2B, 2'I provide cup shape formation to the discs and being firmly bonded to theiolds-of the pleats I2 effectively increase the rigidity and strength of the bondedparts. Moreover, these rims act to maintain 'fixed positions of the ra- Y dially extending pleats and to prevent any radial displacement thereof either outwardly or inwardly of the xed body form, and thereby preperforated metal cylinder 3B serving substan` y tially the same purposeas spring I4. The end discs l8a and 19a in their application to the end edges of the pleats I2a, however, are merely turned down at their outer peripheries forming the outer annular flanges 25a, 21a which are bonded to the outer folds Ha of the pleats 12aV by thermosetting phenol formaldehyde resin cement 22a in the same way as anges 28 and 2T. Inner flanges corresponding to flanges 24 and 25 are omitted. A guide ring 3i is suitably positioned at one end of the unit being held in place suitably by the disc |9a. Similarly, a second guide ring 32 is suitably held in place at the other end of the unit by the disc 18a. This ring 32 has a bail or handle 33 to facilitate insertion and removal of the unit. As with the modification of Fig. 1, the rims 26a and 21a render the discs cuplike in shape and being firmly bonded to the folds Ila of the pleats I2a 'effectively increase the rigidity and strength of the bonded parts, and act to prevent radialdisplagcement outwardly of any pleats that may loosen in transit or use of the n unit, thereby preventing leakage.

In the embodiment shown in Fig. 4, all parts bearing the same reference characters with added subscripts b correspond to those in Figs. 1 and 2. Herein, however, the end discs [8b and 19h in their application to the end edges of the pleats I2b are only turned down at the peripheries of their holes 2Gb and 2lb forming the inner annular rims or flanges 24h, Zb which are bonded to the inner folds b of the pleats 12b by the thermosetting phenol formaldehyde resin cement 22h in the same way as flanges 2li and 25. Outer rims or flanges corresponding to rims or flanges 26 and 21 are omitted.

As with the modification of Fig. 1, the rims 29h,

. 25h, being firmly bonded to the inner folds 15b of the pleats I2b, effectively increase the rigidity l and strength of the bonded parts and act to reduce likelihood of loosening and outward radial displacement of any pleats during transit or use,

. and thereby prevent leakage.

While specific embodiments of the invention have been disclosed, variations in structural details within the scope of the appended claims are L possible and are contemplated. There is no intention, therefore, of limitation to the exact Y details shown and described.

What is claimed is: 1. A replaceable filter unit of the character described comprising a pleated filter body of resinimpregnated paper arranged in tubular form and with the pleats extending substantially radially,

end discs of the same material as the filter body closing off opposite ends of the body, said discs being bonded by a thermosetting resin adhesive to opposite end edges of said pleats, said adhesive of the pleats in contact therewith.

2. A replaceable filter unit of the character described comprising a pleated filter body of resin-impregnated paper arranged in tubular form and with the pleats extending substantially radially, end discs of the same material as the filter body closing off opposite ends of the body, said discs being bonded by a thermosetting resin adhesive to opposite end edges of said pleats, said adhesive lying between under faces of said discs and corresponding end edges of said pleats in contact therewith, and having turned down rims bonded adhesively by Y thermosetting resin adhesive to inner and outer folds of the pleats, said adhesive lying between inner faces of the turned down rims and the folds of the pleats in contact therewith,

3. A replaceable filter unit of the character described comprising a pleated flilter body of resinimpregnated paper arranged in tubular form and with the pleats extending substantially radially,

, end discs of the same'material as the filter body closing olf opposite ends of the body, said discs being bonded by a thermosetting resin adhesive to opposite end edges of said pleats, said adhesive lying between under faces of said discs and corresponding end edges of said pleats in contact therewith, and having turned down rims bonded adhesively by thermosetting resin adhesive to outer folds of the pleats, said adhesive lying between inner faces of the turned down rims and the folds of the pleats in contact therewith.

4, A replaceable filter unit of the character described comprising a pleated filter body of resinimpregnated paper arranged in tubular form and with the pleats extending substantially radially,

. being bonded by a thermosetting resin adhesive to opposite end edges of said pleats, said adhesive lying between under faces of said discs and corresponding end edges of said pleats in contact therewith, and having turned down rims bonded y adhesively by thermosettng resin adhesive to inner folds of the pleats, said adhesive lying between inner facesof the turned down rims and the folds of the pleats in contact therewith.

ALBERT EDWARD BELL.

References cited in the nie of this patent UNITED sTATEs PATENTS Number Name Date 1,148,237 Kneuper July 2'7, 1915 2,218,339 Manning Oct. 15, 1940 2,239,868 Williams Apr. 29, 1941 2,358,238 Lindblad Sept. 12, 1944 2,395,449 Briggs Feb. 26, 1946 2,571,059 Puschelberg et al. Oct. 9, 1951 FOREIGN PATENTS Number Country Date 401,287 Great Britain Oct. 30, 1933

US2642187A 1950-01-11 1950-01-11 Filter unit construction Expired - Lifetime US2642187A (en)

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US2642187A US2642187A (en) 1950-01-11 1950-01-11 Filter unit construction

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US2642187A US2642187A (en) 1950-01-11 1950-01-11 Filter unit construction
GB3008750A GB689661A (en) 1950-01-11 1950-12-08 Improvements in or relating to replaceable filters

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Cited By (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2731155A (en) * 1953-03-27 1956-01-17 Fram Corp Filter cartridge pull-out device
US2732031A (en) * 1953-05-07 1956-01-24 Combination seal and gasket for end of pleated cartridge
US2739916A (en) * 1953-12-08 1956-03-27 Fram Corp Method of making filter cartridges
US2749265A (en) * 1953-11-05 1956-06-05 Bendix Aviat Corp Method of making pleated paper filter elements
US2751084A (en) * 1954-03-11 1956-06-19 Purolator Products Inc Fuel tank filter installation
US2754002A (en) * 1948-11-04 1956-07-10 Gen Motors Corp Filters
US2759610A (en) * 1953-01-16 1956-08-21 William S James Pleated paper filter element
US2795332A (en) * 1953-07-09 1957-06-11 Purolator Products Inc Apparatus for filtering contaminantcontaining coating liquids
US2801751A (en) * 1955-03-02 1957-08-06 Marvel Eng Co High pressure valved filters
US2843269A (en) * 1955-05-16 1958-07-15 Purolator Products Inc Center tubes for filters
DE1035102B (en) * 1952-07-18 1958-07-31 Fram Corp Filter element for liquids and method for assembling this filter element
US2937756A (en) * 1954-12-29 1960-05-24 Wix Corp Filter unit
US3054507A (en) * 1955-01-05 1962-09-18 Wix Corp Replaceable filter cartridges
US3127341A (en) * 1964-03-31 abeles
US3133847A (en) * 1960-12-02 1964-05-19 Tecalemit Ltd Fluid filters
US3198336A (en) * 1961-03-02 1965-08-03 Harry E Hyslop Pleated oil filter
US3238699A (en) * 1960-03-30 1966-03-08 Automotive Dev Inc Filter cartridges and machine for making the same
US3272337A (en) * 1963-04-03 1966-09-13 Standard Oil Co Fuel dispensing system for assuring delivery of uncontaminated fuel
US3300050A (en) * 1965-08-23 1967-01-24 Wix Corp Filter unit
FR2414354A1 (en) * 1978-01-11 1979-08-10 Purolator Inc Fluid filter, including Oil for internal combustion engines
US4561979A (en) * 1983-01-03 1985-12-31 Harmsco, Inc. Single cartridge filter
US4725323A (en) * 1985-05-22 1988-02-16 Cuno Incorporated Filter element
WO1988001530A1 (en) * 1986-09-02 1988-03-10 Eastman Kodak Company Retractor for permeator or filter module
US4731184A (en) * 1985-05-22 1988-03-15 Cuno Incorporated Filter element
US4767531A (en) * 1986-09-02 1988-08-30 Eastman Kodak Company Retractor for permeator or filter module
US5015316A (en) * 1985-05-22 1991-05-14 Cuno, Incorporated Filter element
US5028327A (en) * 1985-05-22 1991-07-02 Cuno, Incorporated Filter element
US5374355A (en) * 1991-12-17 1994-12-20 Filterwerk Mann & Hummel Gmbh Filter for fuels or lubricants of an internal combustion engine
US5399264A (en) * 1993-03-22 1995-03-21 Cuno, Incorporated Compressible differential pressure energized seals for filter elements and the like
US5589060A (en) * 1991-03-28 1996-12-31 Knecht Filterwerke Gmbh Filter for liquids, in particular internal-combustion engine lubricant oils
US5855780A (en) * 1996-11-04 1999-01-05 Advanced Performance Technology, Inc. Fuel filter element with flow actuator
US6053334A (en) * 1993-09-15 2000-04-25 Parker Hannifin Customer Support Inc. Fuel filter with valve device
US6096212A (en) * 1997-06-10 2000-08-01 Usf Filtration And Separations Group, Inc. Fluid filter and method of making
US6180909B1 (en) * 1998-10-01 2001-01-30 Usf Filtration And Separations Group, Inc. Apparatus and method for sealing fluid filter by infrared heating
US6291806B1 (en) 1998-10-01 2001-09-18 Usf Filtration And Separations Group, Inc. Process for bonding workpieces
US6328883B1 (en) 2000-05-31 2001-12-11 Parker-Hannifin Corporation Fuel filter assembly with priming pump
US6435861B1 (en) 1997-06-10 2002-08-20 Usf Filtration And Separations Group, Inc. Gas burner assembly and method of making
DE102004063346A1 (en) * 2004-12-23 2006-07-13 Mann + Hummel Gmbh Concentric filter is made from folded paper, non-woven or melt-blown fabric which is bonded to end disks and is supported by helix made from plastic or metal
WO2008044108A2 (en) * 2006-10-12 2008-04-17 Herry Wanta Wijaya Filter with internal hole suppport able to improve strength and director of liquid or gas fluid flow

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5419373A (en) * 1991-07-25 1995-05-30 May; Clifford H. Filter support tube for a filter cartridge

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1148237A (en) * 1913-07-31 1915-07-27 George M Kneuper Filter-cell.
GB401287A (en) * 1932-04-28 1933-10-30 Cecil Gordon Vokes Improvements relating to filters
US2218339A (en) * 1936-09-22 1940-10-15 F W Manning Company Ltd Filter and oil recharge
US2239868A (en) * 1938-10-27 1941-04-29 Motor Improvements Inc Filter
US2358238A (en) * 1941-02-24 1944-09-12 Mercury Cleaning Systems Filter for dry cleaning liquids
US2395449A (en) * 1942-03-31 1946-02-26 Southwick W Briggs Filter unit
US2571059A (en) * 1947-06-05 1951-10-09 George C Puschelberg Blood strainer

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1148237A (en) * 1913-07-31 1915-07-27 George M Kneuper Filter-cell.
GB401287A (en) * 1932-04-28 1933-10-30 Cecil Gordon Vokes Improvements relating to filters
US2218339A (en) * 1936-09-22 1940-10-15 F W Manning Company Ltd Filter and oil recharge
US2239868A (en) * 1938-10-27 1941-04-29 Motor Improvements Inc Filter
US2358238A (en) * 1941-02-24 1944-09-12 Mercury Cleaning Systems Filter for dry cleaning liquids
US2395449A (en) * 1942-03-31 1946-02-26 Southwick W Briggs Filter unit
US2571059A (en) * 1947-06-05 1951-10-09 George C Puschelberg Blood strainer

Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3127341A (en) * 1964-03-31 abeles
US2754002A (en) * 1948-11-04 1956-07-10 Gen Motors Corp Filters
DE1035102B (en) * 1952-07-18 1958-07-31 Fram Corp Filter element for liquids and method for assembling this filter element
US2759610A (en) * 1953-01-16 1956-08-21 William S James Pleated paper filter element
US2731155A (en) * 1953-03-27 1956-01-17 Fram Corp Filter cartridge pull-out device
US2732031A (en) * 1953-05-07 1956-01-24 Combination seal and gasket for end of pleated cartridge
US2795332A (en) * 1953-07-09 1957-06-11 Purolator Products Inc Apparatus for filtering contaminantcontaining coating liquids
US2749265A (en) * 1953-11-05 1956-06-05 Bendix Aviat Corp Method of making pleated paper filter elements
US2739916A (en) * 1953-12-08 1956-03-27 Fram Corp Method of making filter cartridges
US2751084A (en) * 1954-03-11 1956-06-19 Purolator Products Inc Fuel tank filter installation
US2937756A (en) * 1954-12-29 1960-05-24 Wix Corp Filter unit
US3054507A (en) * 1955-01-05 1962-09-18 Wix Corp Replaceable filter cartridges
US2801751A (en) * 1955-03-02 1957-08-06 Marvel Eng Co High pressure valved filters
US2843269A (en) * 1955-05-16 1958-07-15 Purolator Products Inc Center tubes for filters
US3238699A (en) * 1960-03-30 1966-03-08 Automotive Dev Inc Filter cartridges and machine for making the same
US3133847A (en) * 1960-12-02 1964-05-19 Tecalemit Ltd Fluid filters
US3198336A (en) * 1961-03-02 1965-08-03 Harry E Hyslop Pleated oil filter
US3272337A (en) * 1963-04-03 1966-09-13 Standard Oil Co Fuel dispensing system for assuring delivery of uncontaminated fuel
US3300050A (en) * 1965-08-23 1967-01-24 Wix Corp Filter unit
FR2414354A1 (en) * 1978-01-11 1979-08-10 Purolator Inc Fluid filter, including Oil for internal combustion engines
US4561979A (en) * 1983-01-03 1985-12-31 Harmsco, Inc. Single cartridge filter
US4731184A (en) * 1985-05-22 1988-03-15 Cuno Incorporated Filter element
US5015316A (en) * 1985-05-22 1991-05-14 Cuno, Incorporated Filter element
US5028327A (en) * 1985-05-22 1991-07-02 Cuno, Incorporated Filter element
US4725323A (en) * 1985-05-22 1988-02-16 Cuno Incorporated Filter element
WO1988001530A1 (en) * 1986-09-02 1988-03-10 Eastman Kodak Company Retractor for permeator or filter module
US4767531A (en) * 1986-09-02 1988-08-30 Eastman Kodak Company Retractor for permeator or filter module
US5589060A (en) * 1991-03-28 1996-12-31 Knecht Filterwerke Gmbh Filter for liquids, in particular internal-combustion engine lubricant oils
US5698097A (en) * 1991-03-28 1997-12-16 Knecht Filterwerke Gmbh Oil filter including replaceable primary and secondary flow filter elements
US5374355A (en) * 1991-12-17 1994-12-20 Filterwerk Mann & Hummel Gmbh Filter for fuels or lubricants of an internal combustion engine
US5399264A (en) * 1993-03-22 1995-03-21 Cuno, Incorporated Compressible differential pressure energized seals for filter elements and the like
US6053334A (en) * 1993-09-15 2000-04-25 Parker Hannifin Customer Support Inc. Fuel filter with valve device
US5855780A (en) * 1996-11-04 1999-01-05 Advanced Performance Technology, Inc. Fuel filter element with flow actuator
US6096212A (en) * 1997-06-10 2000-08-01 Usf Filtration And Separations Group, Inc. Fluid filter and method of making
US6435861B1 (en) 1997-06-10 2002-08-20 Usf Filtration And Separations Group, Inc. Gas burner assembly and method of making
US6180909B1 (en) * 1998-10-01 2001-01-30 Usf Filtration And Separations Group, Inc. Apparatus and method for sealing fluid filter by infrared heating
US6291806B1 (en) 1998-10-01 2001-09-18 Usf Filtration And Separations Group, Inc. Process for bonding workpieces
US6328883B1 (en) 2000-05-31 2001-12-11 Parker-Hannifin Corporation Fuel filter assembly with priming pump
DE102004063346A1 (en) * 2004-12-23 2006-07-13 Mann + Hummel Gmbh Concentric filter is made from folded paper, non-woven or melt-blown fabric which is bonded to end disks and is supported by helix made from plastic or metal
WO2008044108A3 (en) * 2006-10-12 2008-06-12 Herry Wanta Wijaya Filter with internal hole suppport able to improve strength and director of liquid or gas fluid flow
WO2008044108A2 (en) * 2006-10-12 2008-04-17 Herry Wanta Wijaya Filter with internal hole suppport able to improve strength and director of liquid or gas fluid flow

Also Published As

Publication number Publication date Type
GB689661A (en) 1953-04-01 application

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